/*

 * Licensed to the Apache Software Foundation (ASF) under one

 * or more contributor license agreements.  See the NOTICE file

 * distributed with this work for additional information

 * regarding copyright ownership.  The ASF licenses this file

 * to you under the Apache License, Version 2.0 (the

 * "License"); you may not use this file except in compliance

 * with the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.bff.gaia.unified.fn.harness.state;



import com.google.auto.value.AutoValue;

import com.bff.gaia.unified.sdk.coders.Coder;

import com.bff.gaia.unified.sdk.transforms.ViewFn;

import com.bff.gaia.unified.sdk.transforms.windowing.BoundedWindow;

import com.bff.gaia.unified.sdk.transforms.windowing.WindowMappingFn;



/**

 * A specification for side inputs containing a value {@link Coder}, the window {@link Coder},

 * {@link ViewFn}, and the {@link WindowMappingFn}.

 *

 * @param <W>

 */

@AutoValue

public abstract class SideInputSpec<W extends BoundedWindow> {

  public static <W extends BoundedWindow> SideInputSpec create(

      Coder<?> coder,

      Coder<W> windowCoder,

      ViewFn<?, ?> viewFn,

      WindowMappingFn<W> windowMappingFn) {

    return new AutoValue_SideInputSpec<>(coder, windowCoder, viewFn, windowMappingFn);

  }



  abstract Coder<?> getCoder();



  abstract Coder<W> getWindowCoder();



  abstract ViewFn<?, ?> getViewFn();



  abstract WindowMappingFn<W> getWindowMappingFn();

}